Operating mechanism for magneto-generators.



A. ZA HRINGER,

OPERATING MECHANISM FOR MAGNETO GENERATORS.

' APPLICATION FILED AUG, 5, 1910.

med Apr'.16, 1912.

2, SHEETS-SHEET 1.

v A ZAHRINGER; Q OPERATING MECHANISM FOR MAGNETO GENERATOR-S.APPLIOATIVON rum) AUG.25,1910.

2 SHEETS-SHEBT 2.

MTNESSES IWENTU (springs w Assam) -Armmenn, or

srn'rcronn'r, GERMA Y, resort, or srtrrronnr; GERMAN;

'AS SIGNOR TOEHE FIRM. 01 ROBERT ornnnrrno mnonsnrsm nonmnomiroommnmons.

Letters Patent- Application filed August 25, 1910. Serial No. 578,842}

:1 1 To ailwhom it may concern:

Be ltflknou n that I, AnNoLn ZllHmNonR, a subjeetof the Emperor ofGermany, re

siding at Stuttgart, Germany, have invented certain new and usefulImprovements in Operating Mechanism for l\Iagneto-Gener-- ators; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to an improved device for operatingmagneto-electric ignition machines for internal combustion engines, ofthe kind in which the rarmature is held between the poles of the magnetsystem by hich compel it-to return to normal position when it has beenturned through an angle out of this position and has then-been released.k

y In the known devices of this kind the armature is turned by a leverkeyed toits she ft. Thisshaft also carries a symmetncah flattened camagainst which bear two springs or sets of springs whereby the armatureis kept in normal position. \Vhen the lever is turned out of thisposition the springs are put under tension by the cam and when the leveris released the springs acting on the cam force it and the armature backto its normal position; at the same lime the springs exert astronghraking action on the tendency of the armature to s vin'g beyondthe normal position owingfto its in ertia. i

According to the present invention the cam placed to one side of theaxis of the armature and is fixed to the lever; moreover, the springshear not only against the cam, but also against a fixed projection orstop, or a pair of such projections or stops, capable of retaining onespring in normal position while the other, deflected, this stop or thepair 01 stops being symmetrical With respect to the line joining theaxis of the pivot of the spring r m and the axis of the armature. Bythis" arrangement, in whichever direction the miniature is turned,bothsprings are always put in tension, instead of only that springwhi'ch'rcsts against the cam during the turning of the armature;

' 1 In the drawings three forms of construction according to theinvention are shown in front elevation;

In each figure, G is the frame and M" the system of magnets ofamagneto-electric ma.- chine of ordinary construction. r

IV is the armature shaft-and Z a fixed pin on which an arm carrying twosets of blade springs F and F is pivoted.

A lever'H is keyed to the armature shaft of the axis of the armature;both sets of springs bear against this cam and against a stop L fixed tothe frame.

In Figs. 1 and 2 this stop L is the bearing .difiler" firom each'otheronly in. that the cam N and the lever H the bfear in in Fig. 1, and onopposite sides in FigLfla I In Big. 3 the cam N is arranged in the samemanner as in Fig. -stop L is. provided on the frame, instead of n singt-he bearing for the purpose. Ob.- viously this single stop might bereplaced by twp pins-or lugs, each ofwhich is positioned torestrain oneot the springs r The operation of the device is the same in principle inall three cases.

and 3, the lever II is turnedfor example toward the right the cam Nmoves with it the set of springs F While the set of springs is retainedby the stop L. The springs are thus put under tension and when the leveris released it springs back position,

beyond the position of equilibrium is very that is tosay, a rapid break.

In the construction shown in Fig. 2, by turning the lever II to therightthe spring F ismoved with it and he spring F remains stationary.

to the arrangement of: the cam -on the axis of the armature,.theadvantage that the arm- 1, but a separate Patented Apr. 16, 1912.

W' and carries a. cam N situated to one side (if the. armature shaft Wand the two forms are on the same side of If, in the constructionshovvnin Figs. -1

to its normal small extent, limited by the tension of the The lever veryquickly comes to middle position until favorable for the formation ofsparks, since this insures reversal of the lines of force By this,construction of the actuating device we attain, as opposed I gentrt'utonin uh-cti'io ignition systems, cornprising an actuating lover fastenedto the all nutttieo .-h;ti't, :1 pivotal supportgu pair of; spun: :i'rmsmonntml on said support, with l thou i'i'uv t'lltlH omht'm'mg thearmature .-h:ti't. 21 want on tho nt-tmiting lov'er at one nth: of tho;t.\'l,- of the zirnntti'tre shaft and mini/tut 'ttongt-igo Ulltf or thtother of the jlt'lhtf alt-m :i thtlcvor 1s turned, and a stop mlnptmi torostrum the spring arm which not. tllg tfl't'tl by said cam, whereby 1both spring :n'm .n'c pnt umler tension by the turning of tilt loner;substantially as hnwiibt xh p I prising an actuating lBVt'l fastened tothe mmatureshaft, a pivotal support, a pair of spring'arms mounted onsaid support with their free .ends embracing the armature shaft, it camon the actuating lev er at one side 1 the axis of the uf'mature adaptedto engagione or the other of the spring arms as tho lover is turned,tllltl' a stop 'n|mutricnll v Pliltft'tl with resput-t to :1 linejoining the ventuof and the center of the pivotal snppott, said stopbeing of silt-h slmpu that it is ulosvly embraced by the spring arms;Substantially 11 tlescribetl.

In testimony whoroof l uflix my signntnrv,

shaft; and

tht arniatlire shaft

